| 摘要 |
Problem It is an object to provide a multiconductor jack and a multiconductor plug having an increased number of electrodes while ensuring practicality as well as compatibility with conventional multiconductor plugs. Solution Means A five-conductor plug associated with the present embodiment comprises first through fifth electrodes (11a through 11e) made of electrically conductive metal(s), and insulating collars (12a through 12d) made of insulating material(s) for achieving isolation between the respective electrodes (11). Outside diameter of fifth electrode (11e) at rod portion (14) is large compared with other electrodes (11a through 11d). The five-conductor jack (20) comprises an insulating casing (21) made of synthetic resin, first through fifth electrically conductive terminals (23a through 23e), switching terminals (24a, 24b), and a thrust member (stopper) (25) secured to the fourth electrically conductive terminal (23d) and located in the region of an opening that is an inlet for a jack. Thrust member (25) is acted on by a restoring force that causes it to protrude into the opening of casing (21), and when protruding, to constrain said opening to a small diameter.
|
